Comment by quickthrowman

You can reject 4 watts of heat with 1 watt of electricity using vapor-compression refrigeration.

You can get that up to 7 or 8 watts (or more!) per watt with evaporative cooling towers and vapor-compression combined.

AFAIK you can’t move heat into somewhere using cooling towers, they only increase cooling efficiency.

Heat pump heating is limited to around 4W of heat moved for every 1W of electricity, with the efficiency dropping as delta T drops (aka as it gets colder outside)

You can generate 1 watt of heat with 1 watt of electricity and a resistive heater, they’re more or less 100% efficient.